i have the built tranney with the
VB upgrade. the difference in the 4th to 5th gear change is 100 times better than the stock 7 AT. Stock time to shift is .680 of a second for this shift. I have not data loged it yet but i can tell you is way faster and crisper.
The harder you push it in MM the faster it shifts ( with authority) Can not wait till the drag strip open next year, the differnce in shift times will put me in to the 12.1's easy.
i normally shift between 7900 to 8100 rpm. I have done one data log run of the 7AT but will not post any shift times as i want to do another data log run to confirm my results. All im going to say is that the shift times were very quick. some as fast as .225 -.240 of a second vs .30 and .31 on my car.
Z